:root {
  --violet: #6D28D9;
  --violet-deep: #4C1D95;
  --lav: #C4B5FD;
  --lav-soft: #EDE9FE;
  --charcoal: #202124;
  --ivory: #FAF8F3;
  --muted: #5B5E68;
  --line: #E1DBD0;
  --sans: "Helvetica Neue", Helvetica, Arial, "Segoe UI", system-ui, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --wrap: 1180px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body { margin: 0; background: var(--ivory); color: var(--charcoal); font: 17px/1.6 var(--sans); overflow-x: hidden; }
img, svg { max-width: 100%; display: block; }
a { color: var(--violet); text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--violet); outline-offset: 3px; border-radius: 2px; }
.dark :focus-visible, footer :focus-visible { outline-color: var(--lav); }
.contact :focus-visible { outline-color: #fff; }
.wrap { width: min(100% - 40px, var(--wrap)); margin-inline: auto; }
.skip { position: absolute; left: 12px; top: -60px; background: var(--charcoal); color: #fff; padding: 10px 16px; z-index: 10; }
.skip:focus { top: 12px; }

/* header */
header.site { padding: 18px 0; border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; color: inherit; }
.brand img { height: 30px; width: auto; }
.brand span { font: 600 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); border-left: 1px solid var(--line); padding-left: 14px; }
nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 22px; }
nav a { color: var(--charcoal); text-decoration: none; font-size: 15px; padding: 4px 0; border-bottom: 2px solid transparent; }
nav a:hover { border-color: var(--violet); }
header.site nav { margin-left: auto; }

/* buttons */
.btn { display: inline-block; background: var(--violet); color: #fff; text-decoration: none; padding: 16px 26px; font-weight: 600; line-height: 1.3; border: 2px solid var(--violet); transition: background .2s, transform .2s; }
.btn:hover { background: var(--violet-deep); border-color: var(--violet-deep); transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--lav); }
.btn.ghost { background: transparent; color: var(--charcoal); border-color: var(--charcoal); }
.btn.ghost:hover { background: var(--charcoal); color: #fff; border-color: var(--charcoal); box-shadow: 4px 4px 0 var(--lav); }
.btn.small { padding: 9px 16px; font-size: 14px; }
.btn.light { background: #fff; color: var(--charcoal); border-color: #fff; }
.btn.light:hover { background: var(--lav); border-color: var(--lav); color: var(--charcoal); box-shadow: 4px 4px 0 var(--violet); }
.copybtn { font: inherit; font-size: 14px; background: none; border: 1px solid currentColor; padding: 3px 10px; cursor: pointer; color: inherit; }

/* hero */
.hero { padding: 56px 0 72px; position: relative; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.kicker { font: 600 13px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--violet); margin: 0 0 22px; }
h1 { font: 800 clamp(2.7rem, 6.6vw, 5.9rem)/.94 var(--sans); letter-spacing: -.045em; margin: 0 0 30px; }
h1 em { font: italic 400 1em/1 var(--serif); letter-spacing: -.03em; color: var(--violet); display: block; }
.lede { font-size: clamp(1.1rem, 2vw, 1.4rem); line-height: 1.5; max-width: 38em; margin: 0 0 32px; }
.cta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.cta .btn { max-width: 100%; }
.mailnote { margin: 22px 0 0; font-size: 15px; color: var(--muted); max-width: 40em; }
.mailnote strong { color: var(--charcoal); overflow-wrap: anywhere; user-select: all; }
.status { margin: 26px 0 0; padding-left: 16px; border-left: 3px solid var(--lav); font-size: 15px; color: var(--muted); max-width: 40em; }

.mark { position: relative; aspect-ratio: 1; background: var(--lav-soft); display: grid; place-items: center;
  background-image: linear-gradient(var(--lav) 1px, transparent 1px), linear-gradient(90deg, var(--lav) 1px, transparent 1px);
  background-size: 12.5% 12.5%; background-position: -1px -1px; }
.mark::after { content: ""; position: absolute; inset: 14px -14px -14px 14px; border: 2px solid var(--charcoal); z-index: -1; }
.mark img { width: 72%; }
.mark .hot { position: absolute; width: 12.5%; aspect-ratio: 1; background: var(--violet); opacity: .85; }
.mark .cap { position: absolute; left: 0; bottom: 0; background: var(--charcoal); color: #fff; font: 12px/1 var(--mono); padding: 8px 10px; letter-spacing: .06em; }
.facts { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 2px solid var(--charcoal); margin: 40px 0 0; padding: 0; list-style: none; }
.facts li { padding: 16px 20px 0 0; font-size: 15px; }
.facts b { display: block; font: 600 12px/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--violet); }

/* sections */
section { padding: 96px 0; }
.eyebrow { font: 600 13px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--violet); margin: 0 0 18px; }
h2 { font: 800 clamp(2rem, 5vw, 3.8rem)/1 var(--sans); letter-spacing: -.035em; margin: 0 0 24px; max-width: 16em; }
h2 em { font: italic 400 1em/1 var(--serif); color: var(--violet); }
h3 { font-size: 1.35rem; line-height: 1.2; letter-spacing: -.01em; margin: 0 0 10px; }
.intro { max-width: 40em; font-size: 1.15rem; color: var(--muted); margin: 0 0 56px; }

/* use cases: editorial rows */
.rows { border-top: 2px solid var(--charcoal); }
.row { display: grid; grid-template-columns: 90px minmax(0, 1fr) minmax(0, 1.2fr); gap: 12px 32px; padding: 32px 0; border-bottom: 1px solid var(--line); transition: background .2s, padding .2s; }
.row:hover { background: linear-gradient(90deg, var(--lav-soft), transparent 70%); padding-left: 12px; }
.row .n { font: 400 3.4rem/1 var(--serif); font-style: italic; color: var(--violet); }
.row p { margin: 0; color: var(--muted); }
.row h3 { font-size: clamp(1.4rem, 2.6vw, 2rem); }

/* workflow */
.flow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); counter-reset: s; position: relative; }
.flow li { counter-increment: s; padding: 44px 24px 0 0; position: relative; border-top: 2px solid var(--charcoal); cursor: default; }
.flow li::before { content: "0" counter(s); position: absolute; top: -13px; left: 0; background: var(--ivory); padding-right: 10px; font: 600 14px/24px var(--mono); color: var(--violet); }
.flow li:hover, .flow li:focus-within { border-top-color: var(--violet); }
.flow h3 { font-size: 1.15rem; }
.flow p { margin: 0; font-size: 15px; color: var(--muted); }
.flow code, code { font: 14px var(--mono); background: var(--lav-soft); padding: 1px 5px; }

/* dark architecture */
.dark { background: var(--charcoal); color: #ECEAF2; }
.dark .eyebrow { color: var(--lav); }
.dark h2 em { color: var(--lav); }
.dark .intro { color: #B9BBC6; }
.dark a { color: var(--lav); }
.diagram-box { border: 1px solid #3A3B42; background: #1A1B1E; }
.scroller { overflow-x: auto; padding: 18px; }
.diagram { min-width: 960px; width: 100%; height: auto; --tf: #2B2C31; --ts: #5B5F6B; --tc: #8B8FA0; }
.diagram .z { transition: opacity .2s; }
.diagram[data-active] .z { opacity: .25; }
.diagram[data-active="rtl"] .z-rtl, .diagram[data-active="front"] .z-front, .diagram[data-active="compile"] .z-compile, .diagram[data-active="fpga"] .z-fpga { opacity: 1; }
/* tile internals live in a <use> shadow tree: style by own class, colours arrive via inherited custom properties */
.tb { fill: var(--tf); stroke: var(--ts); stroke-width: 1.5; }
.tc { fill: var(--tc); }
.tr { stroke: var(--ts); stroke-width: 2; fill: none; }
.tn { fill: var(--ts); }
.tile.hot { --tf: #3B1A78; --ts: var(--lav); --tc: var(--lav); }
.tile:hover { --ts: #fff; --tc: #fff; }
.box { fill: #25262A; stroke: #5B5F6B; stroke-width: 1.5; }
.lbl { fill: #ECEAF2; font: 600 15px var(--sans); }
.sub { fill: #9CA0AE; font: 12.5px var(--mono); }
.link { stroke: #34353B; stroke-width: 2; fill: none; }
.arrow { stroke: var(--lav); stroke-width: 2; fill: none; }
.sched { stroke: var(--lav); stroke-width: 3; stroke-dasharray: 9 7; fill: none; }
.frame { fill: none; stroke: var(--lav); stroke-width: 1.5; stroke-dasharray: 3 5; }
.diagram-box figcaption { border-top: 1px solid #3A3B42; padding: 14px 18px; font-size: 14px; color: #B9BBC6; }
.tag { display: inline-block; font: 600 12px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; background: var(--lav); color: var(--charcoal); padding: 5px 8px; margin-right: 8px; }

/* pilot */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; }
.list { list-style: none; margin: 0; padding: 0; }
.list li { padding: 14px 0 14px 34px; border-top: 1px solid var(--line); position: relative; }
.list li::before { content: ""; position: absolute; left: 4px; top: 22px; width: 12px; height: 12px; background: var(--violet); transform: rotate(45deg); }
.list li:last-child { border-bottom: 1px solid var(--line); }
.list.no li::before { background: transparent; border: 2px solid var(--charcoal); }
.pilot-cta { margin-top: 36px; }

/* research */
.research { background: var(--lav-soft); }
.compare { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; margin: 32px 0 48px; border: 2px solid var(--charcoal); background: var(--ivory); }
.compare > div { padding: 28px; }
.compare > div + div { border-left: 2px solid var(--charcoal); background: var(--charcoal); color: #ECEAF2; }
.compare ul { margin: 12px 0 0; padding-left: 20px; }
.compare li { margin-bottom: 6px; }
.pill { font: 600 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; display: inline-block; padding: 6px 9px; background: var(--violet); color: #fff; }
.compare > div + div .pill { background: var(--lav); color: var(--charcoal); }
.sources { list-style: none; padding: 0; margin: 0; border-top: 2px solid var(--charcoal); }
.sources li { border-bottom: 1px solid var(--line); }
.sources a { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 8px 24px; padding: 18px 0; color: var(--charcoal); text-decoration: none; }
.sources a:hover b { text-decoration: underline; }
.sources span { font: 600 12px/1.6 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--violet); }
.sources small { display: block; font-size: 14px; color: var(--muted); overflow-wrap: anywhere; }

/* faq */
details { border-top: 1px solid var(--line); padding: 20px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 700; font-size: 1.15rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--violet); font: 400 1.6rem/1 var(--mono); }
details[open] summary::after { content: "\2212"; }
details p { margin: 12px 0 0; max-width: 46em; color: var(--muted); }
.faqgrid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 56px; }

/* contact + footer */
.contact { background: var(--violet); color: #fff; }
.contact h2 { color: #fff; max-width: 12em; }
.contact h2 em { color: var(--lav); }
.contact .grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 56px; align-items: start; }
.contact p { max-width: 38em; }
.contact .mail { font: 700 clamp(1.1rem, 4vw, 1.7rem)/1.3 var(--sans); overflow-wrap: anywhere; user-select: all; }
.contact ol { margin: 0; padding: 0; list-style: none; counter-reset: q; border-top: 1px solid rgba(255,255,255,.4); }
.contact ol li { counter-increment: q; padding: 12px 0 12px 40px; border-bottom: 1px solid rgba(255,255,255,.4); position: relative; }
.contact ol li::before { content: counter(q, decimal-leading-zero); position: absolute; left: 0; font: 13px/1.9 var(--mono); color: var(--lav); }
footer { background: var(--charcoal); color: #B9BBC6; padding: 56px 0 40px; font-size: 15px; }
footer .top { display: flex; flex-wrap: wrap; gap: 32px 64px; justify-content: space-between; padding-bottom: 32px; border-bottom: 1px solid #3A3B42; }
footer img { height: 34px; width: auto; margin-bottom: 14px; }
footer a { color: #fff; }
footer h2 { font: 600 12px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--lav); margin: 0 0 14px; }
footer ul { list-style: none; margin: 0; padding: 0; }
footer li { margin-bottom: 6px; }
footer .fine { padding-top: 24px; font-size: 13px; max-width: 60em; }

/* responsive */
@media (max-width: 900px) {
  .hero { padding: 48px 0 56px; }
  .hero .wrap, .split, .faqgrid, .contact .grid { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .mark { max-width: 420px; margin-right: 14px; }
  .facts { grid-template-columns: 1fr; }
  .row { grid-template-columns: 56px minmax(0, 1fr); }
  .row p { grid-column: 2; }
  .row .n { font-size: 2.4rem; }
  .flow { grid-template-columns: 1fr 1fr; gap: 36px 24px; }
  .compare { grid-template-columns: 1fr; }
  .compare > div + div { border-left: 0; border-top: 2px solid var(--charcoal); }
  .sources a { grid-template-columns: 1fr; }
  section { padding: 64px 0; }
  header.site nav { margin-left: 0; width: 100%; }
}
@media (max-width: 520px) {
  .flow { grid-template-columns: 1fr; }
  .brand span { display: none; }
  .btn { width: 100%; text-align: center; }
  .btn.small { width: auto; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .btn:hover, .row:hover { transform: none; }
}

/* subpages: about, privacy, cookies, terms */
nav a[aria-current="page"] { border-color: var(--violet); }
.page-hero { padding: 64px 0 56px; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(2.4rem, 5.4vw, 4.4rem); max-width: 14em; margin-bottom: 24px; }
.page-hero .lede { margin: 0; color: var(--muted); }
.updated { font: 600 13px/1.4 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin: 24px 0 0; }
.doc { padding: 64px 0 96px; }
.doc .wrap { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 56px; align-items: start; }
.toc { position: sticky; top: 24px; border-top: 2px solid var(--charcoal); padding-top: 14px; font-size: 15px; }
.toc h2 { font: 600 12px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--violet); margin: 0 0 14px; }
.toc ol { list-style: none; margin: 0; padding: 0; }
.toc li { margin-bottom: 8px; }
.toc a { color: var(--charcoal); text-decoration: none; }
.toc a:hover { text-decoration: underline; }
.prose { max-width: 46em; }
.prose h2 { font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -.02em; max-width: none; margin: 48px 0 14px; padding-top: 22px; border-top: 1px solid var(--line); scroll-margin-top: 16px; }
.prose h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.prose ul { padding-left: 22px; }
.prose li { margin-bottom: 8px; }
.prose .note { border-left: 3px solid var(--lav); padding-left: 16px; color: var(--muted); }
.spec { display: grid; grid-template-columns: 11em minmax(0, 1fr); margin: 20px 0; border-top: 2px solid var(--charcoal); }
.spec dt, .spec dd { margin: 0; padding: 12px 0; border-bottom: 1px solid var(--line); }
.spec dt { font: 600 13px/1.7 var(--mono); letter-spacing: .04em; text-transform: uppercase; color: var(--violet); padding-right: 16px; }
.spec dd { overflow-wrap: anywhere; }
.dark .row { border-bottom-color: #3A3B42; }
.dark .row:hover { background: linear-gradient(90deg, #2B2C31, transparent 70%); }
.dark .row p { color: #B9BBC6; }
.about-lead { max-width: 40em; font-size: 1.15rem; }
.about-lead p { margin: 0 0 18px; }

/* cookie information notice (built by site.js) */
.linkbtn { font: inherit; background: none; border: 0; padding: 0; color: #fff; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; text-align: left; }
.linkbtn[hidden] { display: none; }
.cookie-notice { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; max-height: 50vh; overflow-y: auto; background: var(--charcoal); color: #ECEAF2; border-top: 3px solid var(--lav); padding: 16px 0; font-size: 15px; }
.cookie-notice[hidden] { display: none; }
.cookie-notice .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; }
.cookie-notice p { margin: 0; flex: 1 1 28em; }
.cookie-notice a { color: var(--lav); }
.cookie-notice :focus-visible { outline-color: #fff; }
body.has-notice { padding-bottom: var(--cn-h, 0px); }
html:has(body.has-notice) { scroll-padding-bottom: var(--cn-h, 0px); }

@media (max-width: 900px) {
  .page-hero { padding: 44px 0 40px; }
  .doc { padding: 40px 0 64px; }
  .doc .wrap { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .toc { position: static; }
  .spec { grid-template-columns: minmax(0, 1fr); }
  .spec dt { border-bottom: 0; padding-bottom: 0; }
}

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }